2191630

Information

• Patent Grant
• 2191630

• References
• Source

• Patent Number

  2,191,630

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1940
  86 years ago

• CPC

  • G05D23/121 - characterised by the sensing element
  • Y10S236/13 - Humidithermostat

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 073 - Measuring and testing
  • 236 - Automatic temperature and humidity regulation
  • 337 - Electricity: electrothermally or thermally actuated switches